Crossword Genius

Ascends with one's hands and feet (8)

Ross

I believe the answer is:

clambers

(Other definitions for clambers that I've seen before include "Climbs awkwardly" , "Gets up" .)

I've seen this clue in The New York Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.